package com.mmall.common;


import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.concurrent.TimeUnit;

public class TokenCache {

    private static Logger logger = LoggerFactory.getLogger(TokenCache.class);

    private static LoadingCache<String,String> localCache  =
            CacheBuilder.newBuilder().initialCapacity(1000).maximumSize(10000).expireAfterAccess(12, TimeUnit.HOURS)
            .build(new CacheLoader<String, String>() {
                //more的数据加载实现，当调用get取值的时候，如果key没有对应的值，就用这个方法进行加载
                @Override
                public String load(String s) throws Exception {

                    return "null";
                }
            });

    public static void setKey(String key,String value){
        localCache.put(key,value);

    }
    public static String getKey(String key){
        String value = null;
        try {
             value=localCache.get(key);
             if("null".equals(value)){
                 return  null;
            }
            return  value;
        }catch (Exception e){
            logger.error("local cache getError"+e);
        }
          return null;

    }



}
